What two facts could you know that this source is reliable and credible

Why did the tokugawa shogunate close japan to foreign influence?

Which of the following events happen during president hardings term? a) the supreme court decided to break up large corporations. b) the supreme court strength and state laws protection labor union. c) the supreme court ruled in favor of extended regulations of child labor. d)the supreme court made it easier for large businesses to operate.

Which of these were achievements of the safavid dynasty? check all that apply.